[media] rename most media/video usb drivers to media/usb

Rename all USB drivers with their own directory under
drivers/media/video into drivers/media/usb and update the
building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 2624 deletions

diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
deleted file mode 100644
index ecb23df7f16e..000000000000
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ /dev/null
@@ -1,2624 +0,0 @@
-/*
-   em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB
-		    video capture devices
-
-   Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
-		      Markus Rechberger <mrechberger@gmail.com>
-		      Mauro Carvalho Chehab <mchehab@infradead.org>
-		      Sascha Sommer <saschasommer@freenet.de>
-
-	Some parts based on SN9C10x PC Camera Controllers GPL driver made
-		by Luca Risolia <luca.risolia@studio.unibo.it>
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/bitmap.h>
-#include <linux/usb.h>
-#include <linux/i2c.h>
-#include <linux/mm.h>
-#include <linux/mutex.h>
-#include <linux/slab.h>
-
-#include "em28xx.h"
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
-#include <media/v4l2-chip-ident.h>
-#include <media/msp3400.h>
-#include <media/tuner.h>
-
-#define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \
-		      "Markus Rechberger <mrechberger@gmail.com>, " \
-		      "Mauro Carvalho Chehab <mchehab@infradead.org>, " \
-		      "Sascha Sommer <saschasommer@freenet.de>"
-
-#define DRIVER_DESC         "Empia em28xx based USB video device driver"
-
-#define EM28XX_VERSION "0.1.3"
-
-#define em28xx_videodbg(fmt, arg...) do {\
-	if (video_debug) \
-		printk(KERN_INFO "%s %s :"fmt, \
-			 dev->name, __func__ , ##arg); } while (0)
-
-static unsigned int isoc_debug;
-module_param(isoc_debug, int, 0644);
-MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
-
-#define em28xx_isocdbg(fmt, arg...) \
-do {\
-	if (isoc_debug) { \
-		printk(KERN_INFO "%s %s :"fmt, \
-			 dev->name, __func__ , ##arg); \
-	} \
-  } while (0)
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-MODULE_VERSION(EM28XX_VERSION);
-
-static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
-static unsigned int vbi_nr[]   = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
-static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
-
-module_param_array(video_nr, int, NULL, 0444);
-module_param_array(vbi_nr, int, NULL, 0444);
-module_param_array(radio_nr, int, NULL, 0444);
-MODULE_PARM_DESC(video_nr, "video device numbers");
-MODULE_PARM_DESC(vbi_nr,   "vbi device numbers");
-MODULE_PARM_DESC(radio_nr, "radio device numbers");
-
-static unsigned int video_debug;
-module_param(video_debug, int, 0644);
-MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
-
-/* supported video standards */
-static struct em28xx_fmt format[] = {
-	{
-		.name     = "16 bpp YUY2, 4:2:2, packed",
-		.fourcc   = V4L2_PIX_FMT_YUYV,
-		.depth    = 16,
-		.reg	  = EM28XX_OUTFMT_YUV422_Y0UY1V,
-	}, {
-		.name     = "16 bpp RGB 565, LE",
-		.fourcc   = V4L2_PIX_FMT_RGB565,
-		.depth    = 16,
-		.reg      = EM28XX_OUTFMT_RGB_16_656,
-	}, {
-		.name     = "8 bpp Bayer BGBG..GRGR",
-		.fourcc   = V4L2_PIX_FMT_SBGGR8,
-		.depth    = 8,
-		.reg      = EM28XX_OUTFMT_RGB_8_BGBG,
-	}, {
-		.name     = "8 bpp Bayer GRGR..BGBG",
-		.fourcc   = V4L2_PIX_FMT_SGRBG8,
-		.depth    = 8,
-		.reg      = EM28XX_OUTFMT_RGB_8_GRGR,
-	}, {
-		.name     = "8 bpp Bayer GBGB..RGRG",
-		.fourcc   = V4L2_PIX_FMT_SGBRG8,
-		.depth    = 8,
-		.reg      = EM28XX_OUTFMT_RGB_8_GBGB,
-	}, {
-		.name     = "12 bpp YUV411",
-		.fourcc   = V4L2_PIX_FMT_YUV411P,
-		.depth    = 12,
-		.reg      = EM28XX_OUTFMT_YUV411,
-	},
-};
-
-/* supported controls */
-/* Common to all boards */
-static struct v4l2_queryctrl ac97_qctrl[] = {
-	{
-		.id = V4L2_CID_AUDIO_VOLUME,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Volume",
-		.minimum = 0x0,
-		.maximum = 0x1f,
-		.step = 0x1,
-		.default_value = 0x1f,
-		.flags = V4L2_CTRL_FLAG_SLIDER,
-	}, {
-		.id = V4L2_CID_AUDIO_MUTE,
-		.type = V4L2_CTRL_TYPE_BOOLEAN,
-		.name = "Mute",
-		.minimum = 0,
-		.maximum = 1,
-		.step = 1,
-		.default_value = 1,
-		.flags = 0,
-	}
-};
-
-/* ------------------------------------------------------------------
-	DMA and thread functions
-   ------------------------------------------------------------------*/
-
-/*
- * Announces that a buffer were filled and request the next
- */
-static inline void buffer_filled(struct em28xx *dev,
-				  struct em28xx_dmaqueue *dma_q,
-				  struct em28xx_buffer *buf)
-{
-	/* Advice that buffer was filled */
-	em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
-	buf->vb.state = VIDEOBUF_DONE;
-	buf->vb.field_count++;
-	do_gettimeofday(&buf->vb.ts);
-
-	dev->isoc_ctl.vid_buf = NULL;
-
-	list_del(&buf->vb.queue);
-	wake_up(&buf->vb.done);
-}
-
-static inline void vbi_buffer_filled(struct em28xx *dev,
-				     struct em28xx_dmaqueue *dma_q,
-				     struct em28xx_buffer *buf)
-{
-	/* Advice that buffer was filled */
-	em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
-
-	buf->vb.state = VIDEOBUF_DONE;
-	buf->vb.field_count++;
-	do_gettimeofday(&buf->vb.ts);
-
-	dev->isoc_ctl.vbi_buf = NULL;
-
-	list_del(&buf->vb.queue);
-	wake_up(&buf->vb.done);
-}
-
-/*
- * Identify the buffer header type and properly handles
- */
-static void em28xx_copy_video(struct em28xx *dev,
-			      struct em28xx_dmaqueue  *dma_q,
-			      struct em28xx_buffer *buf,
-			      unsigned char *p,
-			      unsigned char *outp, unsigned long len)
-{
-	void *fieldstart, *startwrite, *startread;
-	int  linesdone, currlinedone, offset, lencopy, remain;
-	int bytesperline = dev->width << 1;
-
-	if (dma_q->pos + len > buf->vb.size)
-		len = buf->vb.size - dma_q->pos;
-
-	startread = p;
-	remain = len;
-
-	if (dev->progressive)
-		fieldstart = outp;
-	else {
-		/* Interlaces two half frames */
-		if (buf->top_field)
-			fieldstart = outp;
-		else
-			fieldstart = outp + bytesperline;
-	}
-
-	linesdone = dma_q->pos / bytesperline;
-	currlinedone = dma_q->pos % bytesperline;
-
-	if (dev->progressive)
-		offset = linesdone * bytesperline + currlinedone;
-	else
-		offset = linesdone * bytesperline * 2 + currlinedone;
-
-	startwrite = fieldstart + offset;
-	lencopy = bytesperline - currlinedone;
-	lencopy = lencopy > remain ? remain : lencopy;
-
-	if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) {
-		em28xx_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
-			       ((char *)startwrite + lencopy) -
-			       ((char *)outp + buf->vb.size));
-		remain = (char *)outp + buf->vb.size - (char *)startwrite;
-		lencopy = remain;
-	}
-	if (lencopy <= 0)
-		return;
-	memcpy(startwrite, startread, lencopy);
-
-	remain -= lencopy;
-
-	while (remain > 0) {
-		startwrite += lencopy + bytesperline;
-		startread += lencopy;
-		if (bytesperline > remain)
-			lencopy = remain;
-		else
-			lencopy = bytesperline;
-
-		if ((char *)startwrite + lencopy > (char *)outp +
-		    buf->vb.size) {
-			em28xx_isocdbg("Overflow of %zi bytes past buffer end"
-				       "(2)\n",
-				       ((char *)startwrite + lencopy) -
-				       ((char *)outp + buf->vb.size));
-			lencopy = remain = (char *)outp + buf->vb.size -
-					   (char *)startwrite;
-		}
-		if (lencopy <= 0)
-			break;
-
-		memcpy(startwrite, startread, lencopy);
-
-		remain -= lencopy;
-	}
-
-	dma_q->pos += len;
-}
-
-static void em28xx_copy_vbi(struct em28xx *dev,
-			      struct em28xx_dmaqueue  *dma_q,
-			      struct em28xx_buffer *buf,
-			      unsigned char *p,
-			      unsigned char *outp, unsigned long len)
-{
-	void *startwrite, *startread;
-	int  offset;
-	int bytesperline;
-
-	if (dev == NULL) {
-		em28xx_isocdbg("dev is null\n");
-		return;
-	}
-	bytesperline = dev->vbi_width;
-
-	if (dma_q == NULL) {
-		em28xx_isocdbg("dma_q is null\n");
-		return;
-	}
-	if (buf == NULL) {
-		return;
-	}
-	if (p == NULL) {
-		em28xx_isocdbg("p is null\n");
-		return;
-	}
-	if (outp == NULL) {
-		em28xx_isocdbg("outp is null\n");
-		return;
-	}
-
-	if (dma_q->pos + len > buf->vb.size)
-		len = buf->vb.size - dma_q->pos;
-
-	startread = p;
-
-	startwrite = outp + dma_q->pos;
-	offset = dma_q->pos;
-
-	/* Make sure the bottom field populates the second half of the frame */
-	if (buf->top_field == 0) {
-		startwrite += bytesperline * dev->vbi_height;
-		offset += bytesperline * dev->vbi_height;
-	}
-
-	memcpy(startwrite, startread, len);
-	dma_q->pos += len;
-}
-
-static inline void print_err_status(struct em28xx *dev,
-				     int packet, int status)
-{
-	char *errmsg = "Unknown";
-
-	switch (status) {
-	case -ENOENT:
-		errmsg = "unlinked synchronuously";
-		break;
-	case -ECONNRESET:
-		errmsg = "unlinked asynchronuously";
-		break;
-	case -ENOSR:
-		errmsg = "Buffer error (overrun)";
-		break;
-	case -EPIPE:
-		errmsg = "Stalled (device not responding)";
-		break;
-	case -EOVERFLOW:
-		errmsg = "Babble (bad cable?)";
-		break;
-	case -EPROTO:
-		errmsg = "Bit-stuff error (bad cable?)";
-		break;
-	case -EILSEQ:
-		errmsg = "CRC/Timeout (could be anything)";
-		break;
-	case -ETIME:
-		errmsg = "Device does not respond";
-		break;
-	}
-	if (packet < 0) {
-		em28xx_isocdbg("URB status %d [%s].\n",	status, errmsg);
-	} else {
-		em28xx_isocdbg("URB packet %d, status %d [%s].\n",
-			       packet, status, errmsg);
-	}
-}
-
-/*
- * video-buf generic routine to get the next available buffer
- */
-static inline void get_next_buf(struct em28xx_dmaqueue *dma_q,
-					  struct em28xx_buffer **buf)
-{
-	struct em28xx *dev = container_of(dma_q, struct em28xx, vidq);
-	char *outp;
-
-	if (list_empty(&dma_q->active)) {
-		em28xx_isocdbg("No active queue to serve\n");
-		dev->isoc_ctl.vid_buf = NULL;
-		*buf = NULL;
-		return;
-	}
-
-	/* Get the next buffer */
-	*buf = list_entry(dma_q->active.next, struct em28xx_buffer, vb.queue);
-
-	/* Cleans up buffer - Useful for testing for frame/URB loss */
-	outp = videobuf_to_vmalloc(&(*buf)->vb);
-	memset(outp, 0, (*buf)->vb.size);
-
-	dev->isoc_ctl.vid_buf = *buf;
-
-	return;
-}
-
-/*
- * video-buf generic routine to get the next available VBI buffer
- */
-static inline void vbi_get_next_buf(struct em28xx_dmaqueue *dma_q,
-				    struct em28xx_buffer **buf)
-{
-	struct em28xx *dev = container_of(dma_q, struct em28xx, vbiq);
-	char *outp;
-
-	if (list_empty(&dma_q->active)) {
-		em28xx_isocdbg("No active queue to serve\n");
-		dev->isoc_ctl.vbi_buf = NULL;
-		*buf = NULL;
-		return;
-	}
-
-	/* Get the next buffer */
-	*buf = list_entry(dma_q->active.next, struct em28xx_buffer, vb.queue);
-	/* Cleans up buffer - Useful for testing for frame/URB loss */
-	outp = videobuf_to_vmalloc(&(*buf)->vb);
-	memset(outp, 0x00, (*buf)->vb.size);
-
-	dev->isoc_ctl.vbi_buf = *buf;
-
-	return;
-}
-
-/*
- * Controls the isoc copy of each urb packet
- */
-static inline int em28xx_isoc_copy(struct em28xx *dev, struct urb *urb)
-{
-	struct em28xx_buffer    *buf;
-	struct em28xx_dmaqueue  *dma_q = &dev->vidq;
-	unsigned char *outp = NULL;
-	int i, len = 0, rc = 1;
-	unsigned char *p;
-
-	if (!dev)
-		return 0;
-
-	if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
-		return 0;
-
-	if (urb->status < 0) {
-		print_err_status(dev, -1, urb->status);
-		if (urb->status == -ENOENT)
-			return 0;
-	}
-
-	buf = dev->isoc_ctl.vid_buf;
-	if (buf != NULL)
-		outp = videobuf_to_vmalloc(&buf->vb);
-
-	for (i = 0; i < urb->number_of_packets; i++) {
-		int status = urb->iso_frame_desc[i].status;
-
-		if (status < 0) {
-			print_err_status(dev, i, status);
-			if (urb->iso_frame_desc[i].status != -EPROTO)
-				continue;
-		}
-
-		len = urb->iso_frame_desc[i].actual_length - 4;
-
-		if (urb->iso_frame_desc[i].actual_length <= 0) {
-			/* em28xx_isocdbg("packet %d is empty",i); - spammy */
-			continue;
-		}
-		if (urb->iso_frame_desc[i].actual_length >
-						dev->max_pkt_size) {
-			em28xx_isocdbg("packet bigger than packet size");
-			continue;
-		}
-
-		p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
-
-		/* FIXME: incomplete buffer checks where removed to make
-		   logic simpler. Impacts of those changes should be evaluated
-		 */
-		if (p[0] == 0x33 && p[1] == 0x95 && p[2] == 0x00) {
-			em28xx_isocdbg("VBI HEADER!!!\n");
-			/* FIXME: Should add vbi copy */
-			continue;
-		}
-		if (p[0] == 0x22 && p[1] == 0x5a) {
-			em28xx_isocdbg("Video frame %d, length=%i, %s\n", p[2],
-				       len, (p[2] & 1) ? "odd" : "even");
-
-			if (dev->progressive || !(p[2] & 1)) {
-				if (buf != NULL)
-					buffer_filled(dev, dma_q, buf);
-				get_next_buf(dma_q, &buf);
-				if (buf == NULL)
-					outp = NULL;
-				else
-					outp = videobuf_to_vmalloc(&buf->vb);
-			}
-
-			if (buf != NULL) {
-				if (p[2] & 1)
-					buf->top_field = 0;
-				else
-					buf->top_field = 1;
-			}
-
-			dma_q->pos = 0;
-		}
-		if (buf != NULL) {
-			if (p[0] != 0x88 && p[0] != 0x22) {
-				em28xx_isocdbg("frame is not complete\n");
-				len += 4;
-			} else {
-				p += 4;
-			}
-			em28xx_copy_video(dev, dma_q, buf, p, outp, len);
-		}
-	}
-	return rc;
-}
-
-/* Version of isoc handler that takes into account a mixture of video and
-   VBI data */
-static inline int em28xx_isoc_copy_vbi(struct em28xx *dev, struct urb *urb)
-{
-	struct em28xx_buffer    *buf, *vbi_buf;
-	struct em28xx_dmaqueue  *dma_q = &dev->vidq;
-	struct em28xx_dmaqueue  *vbi_dma_q = &dev->vbiq;
-	unsigned char *outp = NULL;
-	unsigned char *vbioutp = NULL;
-	int i, len = 0, rc = 1;
-	unsigned char *p;
-	int vbi_size;
-
-	if (!dev)
-		return 0;
-
-	if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
-		return 0;
-
-	if (urb->status < 0) {
-		print_err_status(dev, -1, urb->status);
-		if (urb->status == -ENOENT)
-			return 0;
-	}
-
-	buf = dev->isoc_ctl.vid_buf;
-	if (buf != NULL)
-		outp = videobuf_to_vmalloc(&buf->vb);
-
-	vbi_buf = dev->isoc_ctl.vbi_buf;
-	if (vbi_buf != NULL)
-		vbioutp = videobuf_to_vmalloc(&vbi_buf->vb);
-
-	for (i = 0; i < urb->number_of_packets; i++) {
-		int status = urb->iso_frame_desc[i].status;
-
-		if (status < 0) {
-			print_err_status(dev, i, status);
-			if (urb->iso_frame_desc[i].status != -EPROTO)
-				continue;
-		}
-
-		len = urb->iso_frame_desc[i].actual_length;
-		if (urb->iso_frame_desc[i].actual_length <= 0) {
-			/* em28xx_isocdbg("packet %d is empty",i); - spammy */
-			continue;
-		}
-		if (urb->iso_frame_desc[i].actual_length >
-						dev->max_pkt_size) {
-			em28xx_isocdbg("packet bigger than packet size");
-			continue;
-		}
-
-		p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
-
-		/* capture type 0 = vbi start
-		   capture type 1 = video start
-		   capture type 2 = video in progress */
-		if (p[0] == 0x33 && p[1] == 0x95) {
-			dev->capture_type = 0;
-			dev->vbi_read = 0;
-			em28xx_isocdbg("VBI START HEADER!!!\n");
-			dev->cur_field = p[2];
-			p += 4;
-			len -= 4;
-		} else if (p[0] == 0x88 && p[1] == 0x88 &&
-			   p[2] == 0x88 && p[3] == 0x88) {
-			/* continuation */
-			p += 4;
-			len -= 4;
-		} else if (p[0] == 0x22 && p[1] == 0x5a) {
-			/* start video */
-			p += 4;
-			len -= 4;
-		}
-
-		vbi_size = dev->vbi_width * dev->vbi_height;
-
-		if (dev->capture_type == 0) {
-			if (dev->vbi_read >= vbi_size) {
-				/* We've already read all the VBI data, so
-				   treat the rest as video */
-				em28xx_isocdbg("dev->vbi_read > vbi_size\n");
-			} else if ((dev->vbi_read + len) < vbi_size) {
-				/* This entire frame is VBI data */
-				if (dev->vbi_read == 0 &&
-				    (!(dev->cur_field & 1))) {
-					/* Brand new frame */
-					if (vbi_buf != NULL)
-						vbi_buffer_filled(dev,
-								  vbi_dma_q,
-								  vbi_buf);
-					vbi_get_next_buf(vbi_dma_q, &vbi_buf);
-					if (vbi_buf == NULL)
-						vbioutp = NULL;
-					else
-						vbioutp = videobuf_to_vmalloc(
-							&vbi_buf->vb);
-				}
-
-				if (dev->vbi_read == 0) {
-					vbi_dma_q->pos = 0;
-					if (vbi_buf != NULL) {
-						if (dev->cur_field & 1)
-							vbi_buf->top_field = 0;
-						else
-							vbi_buf->top_field = 1;
-					}
-				}
-
-				dev->vbi_read += len;
-				em28xx_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
-						vbioutp, len);
-			} else {
-				/* Some of this frame is VBI data and some is
-				   video data */
-				int vbi_data_len = vbi_size - dev->vbi_read;
-				dev->vbi_read += vbi_data_len;
-				em28xx_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
-						vbioutp, vbi_data_len);
-				dev->capture_type = 1;
-				p += vbi_data_len;
-				len -= vbi_data_len;
-			}
-		}
-
-		if (dev->capture_type == 1) {
-			dev->capture_type = 2;
-			if (dev->progressive || !(dev->cur_field & 1)) {
-				if (buf != NULL)
-					buffer_filled(dev, dma_q, buf);
-				get_next_buf(dma_q, &buf);
-				if (buf == NULL)
-					outp = NULL;
-				else
-					outp = videobuf_to_vmalloc(&buf->vb);
-			}
-			if (buf != NULL) {
-				if (dev->cur_field & 1)
-					buf->top_field = 0;
-				else
-					buf->top_field = 1;
-			}
-
-			dma_q->pos = 0;
-		}
-
-		if (buf != NULL && dev->capture_type == 2) {
-			if (len >= 4 && p[0] == 0x88 && p[1] == 0x88 &&
-			    p[2] == 0x88 && p[3] == 0x88) {
-				p += 4;
-				len -= 4;
-			}
-			if (len >= 4 && p[0] == 0x22 && p[1] == 0x5a) {
-				em28xx_isocdbg("Video frame %d, len=%i, %s\n",
-					       p[2], len, (p[2] & 1) ?
-					       "odd" : "even");
-				p += 4;
-				len -= 4;
-			}
-
-			if (len > 0)
-				em28xx_copy_video(dev, dma_q, buf, p, outp,
-						  len);
-		}
-	}
-	return rc;
-}
-
-
-/* ------------------------------------------------------------------
-	Videobuf operations
-   ------------------------------------------------------------------*/
-
-static int
-buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
-{
-	struct em28xx_fh *fh = vq->priv_data;
-	struct em28xx        *dev = fh->dev;
-	struct v4l2_frequency f;
-
-	*size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)
-		>> 3;
-
-	if (0 == *count)
-		*count = EM28XX_DEF_BUF;
-
-	if (*count < EM28XX_MIN_BUF)
-		*count = EM28XX_MIN_BUF;
-
-	/* Ask tuner to go to analog or radio mode */
-	memset(&f, 0, sizeof(f));
-	f.frequency = dev->ctl_freq;
-	f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
-
-	v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
-
-	return 0;
-}
-
-/* This is called *without* dev->slock held; please keep it that way */
-static void free_buffer(struct videobuf_queue *vq, struct em28xx_buffer *buf)
-{
-	struct em28xx_fh     *fh  = vq->priv_data;
-	struct em28xx        *dev = fh->dev;
-	unsigned long flags = 0;
-	if (in_interrupt())
-		BUG();
-
-	/* We used to wait for the buffer to finish here, but this didn't work
-	   because, as we were keeping the state as VIDEOBUF_QUEUED,
-	   videobuf_queue_cancel marked it as finished for us.
-	   (Also, it could wedge forever if the hardware was misconfigured.)
-
-	   This should be safe; by the time we get here, the buffer isn't
-	   queued anymore. If we ever start marking the buffers as
-	   VIDEOBUF_ACTIVE, it won't be, though.
-	*/
-	spin_lock_irqsave(&dev->slock, flags);
-	if (dev->isoc_ctl.vid_buf == buf)
-		dev->isoc_ctl.vid_buf = NULL;
-	spin_unlock_irqrestore(&dev->slock, flags);
-
-	videobuf_vmalloc_free(&buf->vb);
-	buf->vb.state = VIDEOBUF_NEEDS_INIT;
-}
-
-static int
-buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
-						enum v4l2_field field)
-{
-	struct em28xx_fh     *fh  = vq->priv_data;
-	struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
-	struct em28xx        *dev = fh->dev;
-	int                  rc = 0, urb_init = 0;
-
-	buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
-			+ 7) >> 3;
-
-	if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
-		return -EINVAL;
-
-	buf->vb.width  = dev->width;
-	buf->vb.height = dev->height;
-	buf->vb.field  = field;
-
-	if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
-		rc = videobuf_iolock(vq, &buf->vb, NULL);
-		if (rc < 0)
-			goto fail;
-	}
-
-	if (!dev->isoc_ctl.analog_bufs.num_bufs)
-		urb_init = 1;
-
-	if (urb_init) {
-		if (em28xx_vbi_supported(dev) == 1)
-			rc = em28xx_init_isoc(dev, EM28XX_ANALOG_MODE,
-					      EM28XX_NUM_PACKETS,
-					      EM28XX_NUM_BUFS,
-					      dev->max_pkt_size,
-					      em28xx_isoc_copy_vbi);
-		else
-			rc = em28xx_init_isoc(dev, EM28XX_ANALOG_MODE,
-					      EM28XX_NUM_PACKETS,
-					      EM28XX_NUM_BUFS,
-					      dev->max_pkt_size,
-					      em28xx_isoc_copy);
-		if (rc < 0)
-			goto fail;
-	}
-
-	buf->vb.state = VIDEOBUF_PREPARED;
-	return 0;
-
-fail:
-	free_buffer(vq, buf);
-	return rc;
-}
-
-static void
-buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
-{
-	struct em28xx_buffer    *buf     = container_of(vb,
-							struct em28xx_buffer,
-							vb);
-	struct em28xx_fh        *fh      = vq->priv_data;
-	struct em28xx           *dev     = fh->dev;
-	struct em28xx_dmaqueue  *vidq    = &dev->vidq;
-
-	buf->vb.state = VIDEOBUF_QUEUED;
-	list_add_tail(&buf->vb.queue, &vidq->active);
-
-}
-
-static void buffer_release(struct videobuf_queue *vq,
-				struct videobuf_buffer *vb)
-{
-	struct em28xx_buffer   *buf  = container_of(vb,
-						    struct em28xx_buffer,
-						    vb);
-	struct em28xx_fh       *fh   = vq->priv_data;
-	struct em28xx          *dev  = (struct em28xx *)fh->dev;
-
-	em28xx_isocdbg("em28xx: called buffer_release\n");
-
-	free_buffer(vq, buf);
-}
-
-static struct videobuf_queue_ops em28xx_video_qops = {
-	.buf_setup      = buffer_setup,
-	.buf_prepare    = buffer_prepare,
-	.buf_queue      = buffer_queue,
-	.buf_release    = buffer_release,
-};
-
-/*********************  v4l2 interface  **************************************/
-
-static void video_mux(struct em28xx *dev, int index)
-{
-	dev->ctl_input = index;
-	dev->ctl_ainput = INPUT(index)->amux;
-	dev->ctl_aoutput = INPUT(index)->aout;
-
-	if (!dev->ctl_aoutput)
-		dev->ctl_aoutput = EM28XX_AOUT_MASTER;
-
-	v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
-			INPUT(index)->vmux, 0, 0);
-
-	if (dev->board.has_msp34xx) {
-		if (dev->i2s_speed) {
-			v4l2_device_call_all(&dev->v4l2_dev, 0, audio,
-				s_i2s_clock_freq, dev->i2s_speed);
-		}
-		/* Note: this is msp3400 specific */
-		v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
-			 dev->ctl_ainput, MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0);
-	}
-
-	if (dev->board.adecoder != EM28XX_NOADECODER) {
-		v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
-			dev->ctl_ainput, dev->ctl_aoutput, 0);
-	}
-
-	em28xx_audio_analog_set(dev);
-}
-
-/* Usage lock check functions */
-static int res_get(struct em28xx_fh *fh, unsigned int bit)
-{
-	struct em28xx    *dev = fh->dev;
-
-	if (fh->resources & bit)
-		/* have it already allocated */
-		return 1;
-
-	/* is it free? */
-	if (dev->resources & bit) {
-		/* no, someone else uses it */
-		return 0;
-	}
-	/* it's free, grab it */
-	fh->resources  |= bit;
-	dev->resources |= bit;
-	em28xx_videodbg("res: get %d\n", bit);
-	return 1;
-}
-
-static int res_check(struct em28xx_fh *fh, unsigned int bit)
-{
-	return fh->resources & bit;
-}
-
-static int res_locked(struct em28xx *dev, unsigned int bit)
-{
-	return dev->resources & bit;
-}
-
-static void res_free(struct em28xx_fh *fh, unsigned int bits)
-{
-	struct em28xx    *dev = fh->dev;
-
-	BUG_ON((fh->resources & bits) != bits);
-
-	fh->resources  &= ~bits;
-	dev->resources &= ~bits;
-	em28xx_videodbg("res: put %d\n", bits);
-}
-
-static int get_ressource(struct em28xx_fh *fh)
-{
-	switch (fh->type) {
-	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
-		return EM28XX_RESOURCE_VIDEO;
-	case V4L2_BUF_TYPE_VBI_CAPTURE:
-		return EM28XX_RESOURCE_VBI;
-	default:
-		BUG();
-		return 0;
-	}
-}
-
-/*
- * ac97_queryctrl()
- * return the ac97 supported controls
- */
-static int ac97_queryctrl(struct v4l2_queryctrl *qc)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(ac97_qctrl); i++) {
-		if (qc->id && qc->id == ac97_qctrl[i].id) {
-			memcpy(qc, &(ac97_qctrl[i]), sizeof(*qc));
-			return 0;
-		}
-	}
-
-	/* Control is not ac97 related */
-	return 1;
-}
-
-/*
- * ac97_get_ctrl()
- * return the current values for ac97 mute and volume
- */
-static int ac97_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl)
-{
-	switch (ctrl->id) {
-	case V4L2_CID_AUDIO_MUTE:
-		ctrl->value = dev->mute;
-		return 0;
-	case V4L2_CID_AUDIO_VOLUME:
-		ctrl->value = dev->volume;
-		return 0;
-	default:
-		/* Control is not ac97 related */
-		return 1;
-	}
-}
-
-/*
- * ac97_set_ctrl()
- * set values for ac97 mute and volume
- */
-static int ac97_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(ac97_qctrl); i++)
-		if (ctrl->id == ac97_qctrl[i].id)
-			goto handle;
-
-	/* Announce that hasn't handle it */
-	return 1;
-
-handle:
-	if (ctrl->value < ac97_qctrl[i].minimum ||
-	    ctrl->value > ac97_qctrl[i].maximum)
-		return -ERANGE;
-
-	switch (ctrl->id) {
-	case V4L2_CID_AUDIO_MUTE:
-		dev->mute = ctrl->value;
-		break;
-	case V4L2_CID_AUDIO_VOLUME:
-		dev->volume = ctrl->value;
-		break;
-	}
-
-	return em28xx_audio_analog_set(dev);
-}
-
-static int check_dev(struct em28xx *dev)
-{
-	if (dev->state & DEV_DISCONNECTED) {
-		em28xx_errdev("v4l2 ioctl: device not present\n");
-		return -ENODEV;
-	}
-
-	if (dev->state & DEV_MISCONFIGURED) {
-		em28xx_errdev("v4l2 ioctl: device is misconfigured; "
-			      "close and open it again\n");
-		return -EIO;
-	}
-	return 0;
-}
-
-static void get_scale(struct em28xx *dev,
-			unsigned int width, unsigned int height,
-			unsigned int *hscale, unsigned int *vscale)
-{
-	unsigned int          maxw = norm_maxw(dev);
-	unsigned int          maxh = norm_maxh(dev);
-
-	*hscale = (((unsigned long)maxw) << 12) / width - 4096L;
-	if (*hscale >= 0x4000)
-		*hscale = 0x3fff;
-
-	*vscale = (((unsigned long)maxh) << 12) / height - 4096L;
-	if (*vscale >= 0x4000)
-		*vscale = 0x3fff;
-}
-
-/* ------------------------------------------------------------------
-	IOCTL vidioc handling
-   ------------------------------------------------------------------*/
-
-static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
-					struct v4l2_format *f)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-
-	f->fmt.pix.width = dev->width;
-	f->fmt.pix.height = dev->height;
-	f->fmt.pix.pixelformat = dev->format->fourcc;
-	f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3;
-	f->fmt.pix.sizeimage = f->fmt.pix.bytesperline  * dev->height;
-	f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
-
-	/* FIXME: TOP? NONE? BOTTOM? ALTENATE? */
-	if (dev->progressive)
-		f->fmt.pix.field = V4L2_FIELD_NONE;
-	else
-		f->fmt.pix.field = dev->interlaced ?
-			   V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
-	return 0;
-}
-
-static struct em28xx_fmt *format_by_fourcc(unsigned int fourcc)
-{
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(format); i++)
-		if (format[i].fourcc == fourcc)
-			return &format[i];
-
-	return NULL;
-}
-
-static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
-			struct v4l2_format *f)
-{
-	struct em28xx_fh      *fh    = priv;
-	struct em28xx         *dev   = fh->dev;
-	unsigned int          width  = f->fmt.pix.width;
-	unsigned int          height = f->fmt.pix.height;
-	unsigned int          maxw   = norm_maxw(dev);
-	unsigned int          maxh   = norm_maxh(dev);
-	unsigned int          hscale, vscale;
-	struct em28xx_fmt     *fmt;
-
-	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
-	if (!fmt) {
-		em28xx_videodbg("Fourcc format (%08x) invalid.\n",
-				f->fmt.pix.pixelformat);
-		return -EINVAL;
-	}
-
-	if (dev->board.is_em2800) {
-		/* the em2800 can only scale down to 50% */
-		height = height > (3 * maxh / 4) ? maxh : maxh / 2;
-		width = width > (3 * maxw / 4) ? maxw : maxw / 2;
-                /* MaxPacketSize for em2800 is too small to capture at full resolution
-                 * use half of maxw as the scaler can only scale to 50% */
-		if (width == maxw && height == maxh)
-			width /= 2;
-	} else {
-		/* width must even because of the YUYV format
-		   height must be even because of interlacing */
-		v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh,
-				      1, 0);
-	}
-
-	get_scale(dev, width, height, &hscale, &vscale);
-
-	width = (((unsigned long)maxw) << 12) / (hscale + 4096L);
-	height = (((unsigned long)maxh) << 12) / (vscale + 4096L);
-
-	f->fmt.pix.width = width;
-	f->fmt.pix.height = height;
-	f->fmt.pix.pixelformat = fmt->fourcc;
-	f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
-	f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
-	f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
-	if (dev->progressive)
-		f->fmt.pix.field = V4L2_FIELD_NONE;
-	else
-		f->fmt.pix.field = dev->interlaced ?
-			   V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
-
-	return 0;
-}
-
-static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc,
-				   unsigned width, unsigned height)
-{
-	struct em28xx_fmt     *fmt;
-
-	fmt = format_by_fourcc(fourcc);
-	if (!fmt)
-		return -EINVAL;
-
-	dev->format = fmt;
-	dev->width  = width;
-	dev->height = height;
-
-	/* set new image size */
-	get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
-
-	em28xx_set_alternate(dev);
-	em28xx_resolution_set(dev);
-
-	return 0;
-}
-
-static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
-			struct v4l2_format *f)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	vidioc_try_fmt_vid_cap(file, priv, f);
-
-	if (videobuf_queue_is_busy(&fh->vb_vidq)) {
-		em28xx_errdev("%s queue busy\n", __func__);
-		return -EBUSY;
-	}
-
-	return em28xx_set_video_format(dev, f->fmt.pix.pixelformat,
-				f->fmt.pix.width, f->fmt.pix.height);
-}
-
-static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
-{
-	struct em28xx_fh   *fh  = priv;
-	struct em28xx      *dev = fh->dev;
-	int                rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	*norm = dev->norm;
-
-	return 0;
-}
-
-static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm)
-{
-	struct em28xx_fh   *fh  = priv;
-	struct em28xx      *dev = fh->dev;
-	int                rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	v4l2_device_call_all(&dev->v4l2_dev, 0, video, querystd, norm);
-
-	return 0;
-}
-
-static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
-{
-	struct em28xx_fh   *fh  = priv;
-	struct em28xx      *dev = fh->dev;
-	struct v4l2_format f;
-	int                rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	dev->norm = *norm;
-
-	/* Adjusts width/height, if needed */
-	f.fmt.pix.width = dev->width;
-	f.fmt.pix.height = dev->height;
-	vidioc_try_fmt_vid_cap(file, priv, &f);
-
-	/* set new image size */
-	dev->width = f.fmt.pix.width;
-	dev->height = f.fmt.pix.height;
-	get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
-
-	em28xx_resolution_set(dev);
-	v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
-
-	return 0;
-}
-
-static int vidioc_g_parm(struct file *file, void *priv,
-			 struct v4l2_streamparm *p)
-{
-	struct em28xx_fh   *fh  = priv;
-	struct em28xx      *dev = fh->dev;
-	int rc = 0;
-
-	if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-
-	if (dev->board.is_webcam)
-		rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0,
-						video, g_parm, p);
-	else
-		v4l2_video_std_frame_period(dev->norm,
-						 &p->parm.capture.timeperframe);
-
-	return rc;
-}
-
-static int vidioc_s_parm(struct file *file, void *priv,
-			 struct v4l2_streamparm *p)
-{
-	struct em28xx_fh   *fh  = priv;
-	struct em28xx      *dev = fh->dev;
-
-	if (!dev->board.is_webcam)
-		return -EINVAL;
-
-	if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-
-	return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p);
-}
-
-static const char *iname[] = {
-	[EM28XX_VMUX_COMPOSITE1] = "Composite1",
-	[EM28XX_VMUX_COMPOSITE2] = "Composite2",
-	[EM28XX_VMUX_COMPOSITE3] = "Composite3",
-	[EM28XX_VMUX_COMPOSITE4] = "Composite4",
-	[EM28XX_VMUX_SVIDEO]     = "S-Video",
-	[EM28XX_VMUX_TELEVISION] = "Television",
-	[EM28XX_VMUX_CABLE]      = "Cable TV",
-	[EM28XX_VMUX_DVB]        = "DVB",
-	[EM28XX_VMUX_DEBUG]      = "for debug only",
-};
-
-static int vidioc_enum_input(struct file *file, void *priv,
-				struct v4l2_input *i)
-{
-	struct em28xx_fh   *fh  = priv;
-	struct em28xx      *dev = fh->dev;
-	unsigned int       n;
-
-	n = i->index;
-	if (n >= MAX_EM28XX_INPUT)
-		return -EINVAL;
-	if (0 == INPUT(n)->type)
-		return -EINVAL;
-
-	i->index = n;
-	i->type = V4L2_INPUT_TYPE_CAMERA;
-
-	strcpy(i->name, iname[INPUT(n)->type]);
-
-	if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) ||
-		(EM28XX_VMUX_CABLE == INPUT(n)->type))
-		i->type = V4L2_INPUT_TYPE_TUNER;
-
-	i->std = dev->vdev->tvnorms;
-
-	return 0;
-}
-
-static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
-{
-	struct em28xx_fh   *fh  = priv;
-	struct em28xx      *dev = fh->dev;
-
-	*i = dev->ctl_input;
-
-	return 0;
-}
-
-static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
-{
-	struct em28xx_fh   *fh  = priv;
-	struct em28xx      *dev = fh->dev;
-	int                rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (i >= MAX_EM28XX_INPUT)
-		return -EINVAL;
-	if (0 == INPUT(i)->type)
-		return -EINVAL;
-
-	video_mux(dev, i);
-	return 0;
-}
-
-static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
-{
-	struct em28xx_fh   *fh    = priv;
-	struct em28xx      *dev   = fh->dev;
-
-	if (!dev->audio_mode.has_audio)
-		return -EINVAL;
-
-	switch (a->index) {
-	case EM28XX_AMUX_VIDEO:
-		strcpy(a->name, "Television");
-		break;
-	case EM28XX_AMUX_LINE_IN:
-		strcpy(a->name, "Line In");
-		break;
-	case EM28XX_AMUX_VIDEO2:
-		strcpy(a->name, "Television alt");
-		break;
-	case EM28XX_AMUX_PHONE:
-		strcpy(a->name, "Phone");
-		break;
-	case EM28XX_AMUX_MIC:
-		strcpy(a->name, "Mic");
-		break;
-	case EM28XX_AMUX_CD:
-		strcpy(a->name, "CD");
-		break;
-	case EM28XX_AMUX_AUX:
-		strcpy(a->name, "Aux");
-		break;
-	case EM28XX_AMUX_PCM_OUT:
-		strcpy(a->name, "PCM");
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	a->index = dev->ctl_ainput;
-	a->capability = V4L2_AUDCAP_STEREO;
-
-	return 0;
-}
-
-static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
-{
-	struct em28xx_fh   *fh  = priv;
-	struct em28xx      *dev = fh->dev;
-
-
-	if (!dev->audio_mode.has_audio)
-		return -EINVAL;
-
-	if (a->index >= MAX_EM28XX_INPUT)
-		return -EINVAL;
-	if (0 == INPUT(a->index)->type)
-		return -EINVAL;
-
-	dev->ctl_ainput = INPUT(a->index)->amux;
-	dev->ctl_aoutput = INPUT(a->index)->aout;
-
-	if (!dev->ctl_aoutput)
-		dev->ctl_aoutput = EM28XX_AOUT_MASTER;
-
-	return 0;
-}
-
-static int vidioc_queryctrl(struct file *file, void *priv,
-				struct v4l2_queryctrl *qc)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   id  = qc->id;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	memset(qc, 0, sizeof(*qc));
-
-	qc->id = id;
-
-	/* enumerate AC97 controls */
-	if (dev->audio_mode.ac97 != EM28XX_NO_AC97) {
-		rc = ac97_queryctrl(qc);
-		if (!rc)
-			return 0;
-	}
-
-	/* enumerate V4L2 device controls */
-	v4l2_device_call_all(&dev->v4l2_dev, 0, core, queryctrl, qc);
-
-	if (qc->type)
-		return 0;
-	else
-		return -EINVAL;
-}
-
-/*
- * FIXME: This is an indirect way to check if a control exists at a
- * subdev. Instead of that hack, maybe the better would be to change all
- * subdevs to return -ENOIOCTLCMD, if an ioctl is not supported.
- */
-static int check_subdev_ctrl(struct em28xx *dev, int id)
-{
-	struct v4l2_queryctrl qc;
-
-	memset(&qc, 0, sizeof(qc));
-	qc.id = id;
-
-	/* enumerate V4L2 device controls */
-	v4l2_device_call_all(&dev->v4l2_dev, 0, core, queryctrl, &qc);
-
-	if (qc.type)
-		return 0;
-	else
-		return -EINVAL;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *priv,
-				struct v4l2_control *ctrl)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-	rc = 0;
-
-	/* Set an AC97 control */
-	if (dev->audio_mode.ac97 != EM28XX_NO_AC97)
-		rc = ac97_get_ctrl(dev, ctrl);
-	else
-		rc = 1;
-
-	/* It were not an AC97 control. Sends it to the v4l2 dev interface */
-	if (rc == 1) {
-		if (check_subdev_ctrl(dev, ctrl->id))
-			return -EINVAL;
-
-		v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_ctrl, ctrl);
-		rc = 0;
-	}
-
-	return rc;
-}
-
-static int vidioc_s_ctrl(struct file *file, void *priv,
-				struct v4l2_control *ctrl)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	/* Set an AC97 control */
-	if (dev->audio_mode.ac97 != EM28XX_NO_AC97)
-		rc = ac97_set_ctrl(dev, ctrl);
-	else
-		rc = 1;
-
-	/* It isn't an AC97 control. Sends it to the v4l2 dev interface */
-	if (rc == 1) {
-		rc = check_subdev_ctrl(dev, ctrl->id);
-		if (!rc)
-			v4l2_device_call_all(&dev->v4l2_dev, 0,
-					     core, s_ctrl, ctrl);
-		/*
-		 * In the case of non-AC97 volume controls, we still need
-		 * to do some setups at em28xx, in order to mute/unmute
-		 * and to adjust audio volume. However, the value ranges
-		 * should be checked by the corresponding V4L subdriver.
-		 */
-		switch (ctrl->id) {
-		case V4L2_CID_AUDIO_MUTE:
-			dev->mute = ctrl->value;
-			rc = em28xx_audio_analog_set(dev);
-			break;
-		case V4L2_CID_AUDIO_VOLUME:
-			dev->volume = ctrl->value;
-			rc = em28xx_audio_analog_set(dev);
-		}
-	}
-	return (rc < 0) ? rc : 0;
-}
-
-static int vidioc_g_tuner(struct file *file, void *priv,
-				struct v4l2_tuner *t)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (0 != t->index)
-		return -EINVAL;
-
-	strcpy(t->name, "Tuner");
-	t->type = V4L2_TUNER_ANALOG_TV;
-
-	v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
-	return 0;
-}
-
-static int vidioc_s_tuner(struct file *file, void *priv,
-				struct v4l2_tuner *t)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (0 != t->index)
-		return -EINVAL;
-
-	v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
-	return 0;
-}
-
-static int vidioc_g_frequency(struct file *file, void *priv,
-				struct v4l2_frequency *f)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-
-	f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
-	f->frequency = dev->ctl_freq;
-	return 0;
-}
-
-static int vidioc_s_frequency(struct file *file, void *priv,
-				struct v4l2_frequency *f)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (0 != f->tuner)
-		return -EINVAL;
-
-	if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
-		return -EINVAL;
-	if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
-		return -EINVAL;
-
-	dev->ctl_freq = f->frequency;
-	v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
-
-	return 0;
-}
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-static int em28xx_reg_len(int reg)
-{
-	switch (reg) {
-	case EM28XX_R40_AC97LSB:
-	case EM28XX_R30_HSCALELOW:
-	case EM28XX_R32_VSCALELOW:
-		return 2;
-	default:
-		return 1;
-	}
-}
-
-static int vidioc_g_chip_ident(struct file *file, void *priv,
-	       struct v4l2_dbg_chip_ident *chip)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-
-	chip->ident = V4L2_IDENT_NONE;
-	chip->revision = 0;
-
-	v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_chip_ident, chip);
-
-	return 0;
-}
-
-
-static int vidioc_g_register(struct file *file, void *priv,
-			     struct v4l2_dbg_register *reg)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int ret;
-
-	switch (reg->match.type) {
-	case V4L2_CHIP_MATCH_AC97:
-		ret = em28xx_read_ac97(dev, reg->reg);
-		if (ret < 0)
-			return ret;
-
-		reg->val = ret;
-		reg->size = 1;
-		return 0;
-	case V4L2_CHIP_MATCH_I2C_DRIVER:
-		v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
-		return 0;
-	case V4L2_CHIP_MATCH_I2C_ADDR:
-		/* TODO: is this correct? */
-		v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
-		return 0;
-	default:
-		if (!v4l2_chip_match_host(&reg->match))
-			return -EINVAL;
-	}
-
-	/* Match host */
-	reg->size = em28xx_reg_len(reg->reg);
-	if (reg->size == 1) {
-		ret = em28xx_read_reg(dev, reg->reg);
-
-		if (ret < 0)
-			return ret;
-
-		reg->val = ret;
-	} else {
-		__le16 val = 0;
-		ret = em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS,
-						   reg->reg, (char *)&val, 2);
-		if (ret < 0)
-			return ret;
-
-		reg->val = le16_to_cpu(val);
-	}
-
-	return 0;
-}
-
-static int vidioc_s_register(struct file *file, void *priv,
-			     struct v4l2_dbg_register *reg)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	__le16 buf;
-
-	switch (reg->match.type) {
-	case V4L2_CHIP_MATCH_AC97:
-		return em28xx_write_ac97(dev, reg->reg, reg->val);
-	case V4L2_CHIP_MATCH_I2C_DRIVER:
-		v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
-		return 0;
-	case V4L2_CHIP_MATCH_I2C_ADDR:
-		/* TODO: is this correct? */
-		v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
-		return 0;
-	default:
-		if (!v4l2_chip_match_host(&reg->match))
-			return -EINVAL;
-	}
-
-	/* Match host */
-	buf = cpu_to_le16(reg->val);
-
-	return em28xx_write_regs(dev, reg->reg, (char *)&buf,
-			       em28xx_reg_len(reg->reg));
-}
-#endif
-
-
-static int vidioc_cropcap(struct file *file, void *priv,
-					struct v4l2_cropcap *cc)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-
-	if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-
-	cc->bounds.left = 0;
-	cc->bounds.top = 0;
-	cc->bounds.width = dev->width;
-	cc->bounds.height = dev->height;
-	cc->defrect = cc->bounds;
-	cc->pixelaspect.numerator = 54;	/* 4:3 FIXME: remove magic numbers */
-	cc->pixelaspect.denominator = 59;
-
-	return 0;
-}
-
-static int vidioc_streamon(struct file *file, void *priv,
-					enum v4l2_buf_type type)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc = -EINVAL;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (unlikely(type != fh->type))
-		return -EINVAL;
-
-	em28xx_videodbg("vidioc_streamon fh=%p t=%d fh->res=%d dev->res=%d\n",
-			fh, type, fh->resources, dev->resources);
-
-	if (unlikely(!res_get(fh, get_ressource(fh))))
-		return -EBUSY;
-
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		rc = videobuf_streamon(&fh->vb_vidq);
-	else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
-		rc = videobuf_streamon(&fh->vb_vbiq);
-
-	return rc;
-}
-
-static int vidioc_streamoff(struct file *file, void *priv,
-					enum v4l2_buf_type type)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
-	    fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)
-		return -EINVAL;
-	if (type != fh->type)
-		return -EINVAL;
-
-	em28xx_videodbg("vidioc_streamoff fh=%p t=%d fh->res=%d dev->res=%d\n",
-			fh, type, fh->resources, dev->resources);
-
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
-		if (res_check(fh, EM28XX_RESOURCE_VIDEO)) {
-			videobuf_streamoff(&fh->vb_vidq);
-			res_free(fh, EM28XX_RESOURCE_VIDEO);
-		}
-	} else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
-		if (res_check(fh, EM28XX_RESOURCE_VBI)) {
-			videobuf_streamoff(&fh->vb_vbiq);
-			res_free(fh, EM28XX_RESOURCE_VBI);
-		}
-	}
-
-	return 0;
-}
-
-static int vidioc_querycap(struct file *file, void  *priv,
-					struct v4l2_capability *cap)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-
-	strlcpy(cap->driver, "em28xx", sizeof(cap->driver));
-	strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card));
-	usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
-
-	cap->capabilities =
-			V4L2_CAP_SLICED_VBI_CAPTURE |
-			V4L2_CAP_VIDEO_CAPTURE |
-			V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
-
-	if (dev->vbi_dev)
-		cap->capabilities |= V4L2_CAP_VBI_CAPTURE;
-
-	if (dev->audio_mode.has_audio)
-		cap->capabilities |= V4L2_CAP_AUDIO;
-
-	if (dev->tuner_type != TUNER_ABSENT)
-		cap->capabilities |= V4L2_CAP_TUNER;
-
-	return 0;
-}
-
-static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
-					struct v4l2_fmtdesc *f)
-{
-	if (unlikely(f->index >= ARRAY_SIZE(format)))
-		return -EINVAL;
-
-	strlcpy(f->description, format[f->index].name, sizeof(f->description));
-	f->pixelformat = format[f->index].fourcc;
-
-	return 0;
-}
-
-static int vidioc_enum_framesizes(struct file *file, void *priv,
-				  struct v4l2_frmsizeenum *fsize)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	struct em28xx_fmt     *fmt;
-	unsigned int	      maxw = norm_maxw(dev);
-	unsigned int	      maxh = norm_maxh(dev);
-
-	fmt = format_by_fourcc(fsize->pixel_format);
-	if (!fmt) {
-		em28xx_videodbg("Fourcc format (%08x) invalid.\n",
-				fsize->pixel_format);
-		return -EINVAL;
-	}
-
-	if (dev->board.is_em2800) {
-		if (fsize->index > 1)
-			return -EINVAL;
-		fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
-		fsize->discrete.width = maxw / (1 + fsize->index);
-		fsize->discrete.height = maxh / (1 + fsize->index);
-		return 0;
-	}
-
-	if (fsize->index != 0)
-		return -EINVAL;
-
-	/* Report a continuous range */
-	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
-	fsize->stepwise.min_width = 48;
-	fsize->stepwise.min_height = 32;
-	fsize->stepwise.max_width = maxw;
-	fsize->stepwise.max_height = maxh;
-	fsize->stepwise.step_width = 1;
-	fsize->stepwise.step_height = 1;
-	return 0;
-}
-
-/* Sliced VBI ioctls */
-static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv,
-					struct v4l2_format *f)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	f->fmt.sliced.service_set = 0;
-	v4l2_device_call_all(&dev->v4l2_dev, 0, vbi, g_sliced_fmt, &f->fmt.sliced);
-
-	if (f->fmt.sliced.service_set == 0)
-		rc = -EINVAL;
-
-	return rc;
-}
-
-static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv,
-			struct v4l2_format *f)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	v4l2_device_call_all(&dev->v4l2_dev, 0, vbi, g_sliced_fmt, &f->fmt.sliced);
-
-	if (f->fmt.sliced.service_set == 0)
-		return -EINVAL;
-
-	return 0;
-}
-
-/* RAW VBI ioctls */
-
-static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
-				struct v4l2_format *format)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-
-	format->fmt.vbi.samples_per_line = dev->vbi_width;
-	format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
-	format->fmt.vbi.offset = 0;
-	format->fmt.vbi.flags = 0;
-	format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
-	format->fmt.vbi.count[0] = dev->vbi_height;
-	format->fmt.vbi.count[1] = dev->vbi_height;
-
-	/* Varies by video standard (NTSC, PAL, etc.) */
-	if (dev->norm & V4L2_STD_525_60) {
-		/* NTSC */
-		format->fmt.vbi.start[0] = 10;
-		format->fmt.vbi.start[1] = 273;
-	} else if (dev->norm & V4L2_STD_625_50) {
-		/* PAL */
-		format->fmt.vbi.start[0] = 6;
-		format->fmt.vbi.start[1] = 318;
-	}
-
-	return 0;
-}
-
-static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv,
-				struct v4l2_format *format)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-
-	format->fmt.vbi.samples_per_line = dev->vbi_width;
-	format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
-	format->fmt.vbi.offset = 0;
-	format->fmt.vbi.flags = 0;
-	format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
-	format->fmt.vbi.count[0] = dev->vbi_height;
-	format->fmt.vbi.count[1] = dev->vbi_height;
-
-	/* Varies by video standard (NTSC, PAL, etc.) */
-	if (dev->norm & V4L2_STD_525_60) {
-		/* NTSC */
-		format->fmt.vbi.start[0] = 10;
-		format->fmt.vbi.start[1] = 273;
-	} else if (dev->norm & V4L2_STD_625_50) {
-		/* PAL */
-		format->fmt.vbi.start[0] = 6;
-		format->fmt.vbi.start[1] = 318;
-	}
-
-	return 0;
-}
-
-static int vidioc_reqbufs(struct file *file, void *priv,
-			  struct v4l2_requestbuffers *rb)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return videobuf_reqbufs(&fh->vb_vidq, rb);
-	else
-		return videobuf_reqbufs(&fh->vb_vbiq, rb);
-}
-
-static int vidioc_querybuf(struct file *file, void *priv,
-			   struct v4l2_buffer *b)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return videobuf_querybuf(&fh->vb_vidq, b);
-	else {
-		/* FIXME: I'm not sure yet whether this is a bug in zvbi or
-		   the videobuf framework, but we probably shouldn't be
-		   returning a buffer larger than that which was asked for.
-		   At a minimum, it causes a crash in zvbi since it does
-		   a memcpy based on the source buffer length */
-		int result = videobuf_querybuf(&fh->vb_vbiq, b);
-		b->length = dev->vbi_width * dev->vbi_height * 2;
-
-		return result;
-	}
-}
-
-static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return videobuf_qbuf(&fh->vb_vidq, b);
-	else
-		return videobuf_qbuf(&fh->vb_vbiq, b);
-}
-
-static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
-{
-	struct em28xx_fh      *fh  = priv;
-	struct em28xx         *dev = fh->dev;
-	int                   rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags &
-				      O_NONBLOCK);
-	else
-		return videobuf_dqbuf(&fh->vb_vbiq, b, file->f_flags &
-				      O_NONBLOCK);
-}
-
-/* ----------------------------------------------------------- */
-/* RADIO ESPECIFIC IOCTLS                                      */
-/* ----------------------------------------------------------- */
-
-static int radio_querycap(struct file *file, void  *priv,
-			  struct v4l2_capability *cap)
-{
-	struct em28xx *dev = ((struct em28xx_fh *)priv)->dev;
-
-	strlcpy(cap->driver, "em28xx", sizeof(cap->driver));
-	strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card));
-	usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
-
-	cap->capabilities = V4L2_CAP_TUNER;
-	return 0;
-}
-
-static int radio_g_tuner(struct file *file, void *priv,
-			 struct v4l2_tuner *t)
-{
-	struct em28xx *dev = ((struct em28xx_fh *)priv)->dev;
-
-	if (unlikely(t->index > 0))
-		return -EINVAL;
-
-	strcpy(t->name, "Radio");
-	t->type = V4L2_TUNER_RADIO;
-
-	v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
-
-	return 0;
-}
-
-static int radio_enum_input(struct file *file, void *priv,
-			    struct v4l2_input *i)
-{
-	if (i->index != 0)
-		return -EINVAL;
-	strcpy(i->name, "Radio");
-	i->type = V4L2_INPUT_TYPE_TUNER;
-
-	return 0;
-}
-
-static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
-{
-	if (unlikely(a->index))
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	return 0;
-}
-
-static int radio_s_tuner(struct file *file, void *priv,
-			 struct v4l2_tuner *t)
-{
-	struct em28xx *dev = ((struct em28xx_fh *)priv)->dev;
-
-	if (0 != t->index)
-		return -EINVAL;
-
-	v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
-
-	return 0;
-}
-
-static int radio_s_audio(struct file *file, void *fh,
-			 struct v4l2_audio *a)
-{
-	return 0;
-}
-
-static int radio_s_input(struct file *file, void *fh, unsigned int i)
-{
-	return 0;
-}
-
-static int radio_queryctrl(struct file *file, void *priv,
-			   struct v4l2_queryctrl *qc)
-{
-	int i;
-
-	if (qc->id <  V4L2_CID_BASE ||
-		qc->id >= V4L2_CID_LASTP1)
-		return -EINVAL;
-
-	for (i = 0; i < ARRAY_SIZE(ac97_qctrl); i++) {
-		if (qc->id && qc->id == ac97_qctrl[i].id) {
-			memcpy(qc, &(ac97_qctrl[i]), sizeof(*qc));
-			return 0;
-		}
-	}
-
-	return -EINVAL;
-}
-
-/*
- * em28xx_v4l2_open()
- * inits the device and starts isoc transfer
- */
-static int em28xx_v4l2_open(struct file *filp)
-{
-	int errCode = 0, radio = 0;
-	struct video_device *vdev = video_devdata(filp);
-	struct em28xx *dev = video_drvdata(filp);
-	enum v4l2_buf_type fh_type = 0;
-	struct em28xx_fh *fh;
-	enum v4l2_field field;
-
-	switch (vdev->vfl_type) {
-	case VFL_TYPE_GRABBER:
-		fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-		break;
-	case VFL_TYPE_VBI:
-		fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
-		break;
-	case VFL_TYPE_RADIO:
-		radio = 1;
-		break;
-	}
-
-	em28xx_videodbg("open dev=%s type=%s users=%d\n",
-			video_device_node_name(vdev), v4l2_type_names[fh_type],
-			dev->users);
-
-
-	if (mutex_lock_interruptible(&dev->lock))
-		return -ERESTARTSYS;
-	fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL);
-	if (!fh) {
-		em28xx_errdev("em28xx-video.c: Out of memory?!\n");
-		mutex_unlock(&dev->lock);
-		return -ENOMEM;
-	}
-	fh->dev = dev;
-	fh->radio = radio;
-	fh->type = fh_type;
-	filp->private_data = fh;
-
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
-		em28xx_set_mode(dev, EM28XX_ANALOG_MODE);
-		em28xx_set_alternate(dev);
-		em28xx_resolution_set(dev);
-
-		/* Needed, since GPIO might have disabled power of
-		   some i2c device
-		 */
-		em28xx_wake_i2c(dev);
-
-	}
-	if (fh->radio) {
-		em28xx_videodbg("video_open: setting radio device\n");
-		v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
-	}
-
-	dev->users++;
-
-	if (dev->progressive)
-		field = V4L2_FIELD_NONE;
-	else
-		field = V4L2_FIELD_INTERLACED;
-
-	videobuf_queue_vmalloc_init(&fh->vb_vidq, &em28xx_video_qops,
-				    NULL, &dev->slock,
-				    V4L2_BUF_TYPE_VIDEO_CAPTURE, field,
-				    sizeof(struct em28xx_buffer), fh, &dev->lock);
-
-	videobuf_queue_vmalloc_init(&fh->vb_vbiq, &em28xx_vbi_qops,
-				    NULL, &dev->slock,
-				    V4L2_BUF_TYPE_VBI_CAPTURE,
-				    V4L2_FIELD_SEQ_TB,
-				    sizeof(struct em28xx_buffer), fh, &dev->lock);
-	mutex_unlock(&dev->lock);
-
-	return errCode;
-}
-
-/*
- * em28xx_realease_resources()
- * unregisters the v4l2,i2c and usb devices
- * called when the device gets disconected or at module unload
-*/
-void em28xx_release_analog_resources(struct em28xx *dev)
-{
-
-	/*FIXME: I2C IR should be disconnected */
-
-	if (dev->radio_dev) {
-		if (video_is_registered(dev->radio_dev))
-			video_unregister_device(dev->radio_dev);
-		else
-			video_device_release(dev->radio_dev);
-		dev->radio_dev = NULL;
-	}
-	if (dev->vbi_dev) {
-		em28xx_info("V4L2 device %s deregistered\n",
-			    video_device_node_name(dev->vbi_dev));
-		if (video_is_registered(dev->vbi_dev))
-			video_unregister_device(dev->vbi_dev);
-		else
-			video_device_release(dev->vbi_dev);
-		dev->vbi_dev = NULL;
-	}
-	if (dev->vdev) {
-		em28xx_info("V4L2 device %s deregistered\n",
-			    video_device_node_name(dev->vdev));
-		if (video_is_registered(dev->vdev))
-			video_unregister_device(dev->vdev);
-		else
-			video_device_release(dev->vdev);
-		dev->vdev = NULL;
-	}
-}
-
-/*
- * em28xx_v4l2_close()
- * stops streaming and deallocates all resources allocated by the v4l2
- * calls and ioctls
- */
-static int em28xx_v4l2_close(struct file *filp)
-{
-	struct em28xx_fh *fh  = filp->private_data;
-	struct em28xx    *dev = fh->dev;
-	int              errCode;
-
-	em28xx_videodbg("users=%d\n", dev->users);
-
-	mutex_lock(&dev->lock);
-	if (res_check(fh, EM28XX_RESOURCE_VIDEO)) {
-		videobuf_stop(&fh->vb_vidq);
-		res_free(fh, EM28XX_RESOURCE_VIDEO);
-	}
-
-	if (res_check(fh, EM28XX_RESOURCE_VBI)) {
-		videobuf_stop(&fh->vb_vbiq);
-		res_free(fh, EM28XX_RESOURCE_VBI);
-	}
-
-	if (dev->users == 1) {
-		/* the device is already disconnect,
-		   free the remaining resources */
-		if (dev->state & DEV_DISCONNECTED) {
-			em28xx_release_resources(dev);
-			kfree(dev->alt_max_pkt_size);
-			kfree(dev);
-			kfree(fh);
-			mutex_unlock(&dev->lock);
-			return 0;
-		}
-
-		/* Save some power by putting tuner to sleep */
-		v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
-
-		/* do this before setting alternate! */
-		em28xx_uninit_isoc(dev, EM28XX_ANALOG_MODE);
-		em28xx_set_mode(dev, EM28XX_SUSPEND);
-
-		/* set alternate 0 */
-		dev->alt = 0;
-		em28xx_videodbg("setting alternate 0\n");
-		errCode = usb_set_interface(dev->udev, 0, 0);
-		if (errCode < 0) {
-			em28xx_errdev("cannot change alternate number to "
-					"0 (error=%i)\n", errCode);
-		}
-	}
-
-	videobuf_mmap_free(&fh->vb_vidq);
-	videobuf_mmap_free(&fh->vb_vbiq);
-	kfree(fh);
-	dev->users--;
-	mutex_unlock(&dev->lock);
-	return 0;
-}
-
-/*
- * em28xx_v4l2_read()
- * will allocate buffers when called for the first time
- */
-static ssize_t
-em28xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
-		 loff_t *pos)
-{
-	struct em28xx_fh *fh = filp->private_data;
-	struct em28xx *dev = fh->dev;
-	int rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (mutex_lock_interruptible(&dev->lock))
-		return -ERESTARTSYS;
-	/* FIXME: read() is not prepared to allow changing the video
-	   resolution while streaming. Seems a bug at em28xx_set_fmt
-	 */
-
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
-		if (res_locked(dev, EM28XX_RESOURCE_VIDEO))
-			rc = -EBUSY;
-		else
-			rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
-					filp->f_flags & O_NONBLOCK);
-	} else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
-		if (!res_get(fh, EM28XX_RESOURCE_VBI))
-			rc = -EBUSY;
-		else
-			rc = videobuf_read_stream(&fh->vb_vbiq, buf, count, pos, 0,
-					filp->f_flags & O_NONBLOCK);
-	}
-	mutex_unlock(&dev->lock);
-
-	return rc;
-}
-
-/*
- * em28xx_poll()
- * will allocate buffers when called for the first time
- */
-static unsigned int em28xx_poll(struct file *filp, poll_table *wait)
-{
-	struct em28xx_fh *fh = filp->private_data;
-	struct em28xx *dev = fh->dev;
-	int rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
-		if (!res_get(fh, EM28XX_RESOURCE_VIDEO))
-			return POLLERR;
-		return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
-	} else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
-		if (!res_get(fh, EM28XX_RESOURCE_VBI))
-			return POLLERR;
-		return videobuf_poll_stream(filp, &fh->vb_vbiq, wait);
-	} else {
-		return POLLERR;
-	}
-}
-
-static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table *wait)
-{
-	struct em28xx_fh *fh = filp->private_data;
-	struct em28xx *dev = fh->dev;
-	unsigned int res;
-
-	mutex_lock(&dev->lock);
-	res = em28xx_poll(filp, wait);
-	mutex_unlock(&dev->lock);
-	return res;
-}
-
-/*
- * em28xx_v4l2_mmap()
- */
-static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
-{
-	struct em28xx_fh *fh    = filp->private_data;
-	struct em28xx	 *dev   = fh->dev;
-	int		 rc;
-
-	rc = check_dev(dev);
-	if (rc < 0)
-		return rc;
-
-	if (mutex_lock_interruptible(&dev->lock))
-		return -ERESTARTSYS;
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
-	else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
-		rc = videobuf_mmap_mapper(&fh->vb_vbiq, vma);
-	mutex_unlock(&dev->lock);
-
-	em28xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
-		(unsigned long)vma->vm_start,
-		(unsigned long)vma->vm_end-(unsigned long)vma->vm_start,
-		rc);
-
-	return rc;
-}
-
-static const struct v4l2_file_operations em28xx_v4l_fops = {
-	.owner         = THIS_MODULE,
-	.open          = em28xx_v4l2_open,
-	.release       = em28xx_v4l2_close,
-	.read          = em28xx_v4l2_read,
-	.poll          = em28xx_v4l2_poll,
-	.mmap          = em28xx_v4l2_mmap,
-	.unlocked_ioctl = video_ioctl2,
-};
-
-static const struct v4l2_ioctl_ops video_ioctl_ops = {
-	.vidioc_querycap            = vidioc_querycap,
-	.vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
-	.vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
-	.vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
-	.vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
-	.vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
-	.vidioc_s_fmt_vbi_cap       = vidioc_s_fmt_vbi_cap,
-	.vidioc_enum_framesizes     = vidioc_enum_framesizes,
-	.vidioc_g_audio             = vidioc_g_audio,
-	.vidioc_s_audio             = vidioc_s_audio,
-	.vidioc_cropcap             = vidioc_cropcap,
-	.vidioc_g_fmt_sliced_vbi_cap   = vidioc_g_fmt_sliced_vbi_cap,
-	.vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
-	.vidioc_s_fmt_sliced_vbi_cap   = vidioc_try_set_sliced_vbi_cap,
-
-	.vidioc_reqbufs             = vidioc_reqbufs,
-	.vidioc_querybuf            = vidioc_querybuf,
-	.vidioc_qbuf                = vidioc_qbuf,
-	.vidioc_dqbuf               = vidioc_dqbuf,
-	.vidioc_g_std               = vidioc_g_std,
-	.vidioc_querystd            = vidioc_querystd,
-	.vidioc_s_std               = vidioc_s_std,
-	.vidioc_g_parm		    = vidioc_g_parm,
-	.vidioc_s_parm		    = vidioc_s_parm,
-	.vidioc_enum_input          = vidioc_enum_input,
-	.vidioc_g_input             = vidioc_g_input,
-	.vidioc_s_input             = vidioc_s_input,
-	.vidioc_queryctrl           = vidioc_queryctrl,
-	.vidioc_g_ctrl              = vidioc_g_ctrl,
-	.vidioc_s_ctrl              = vidioc_s_ctrl,
-	.vidioc_streamon            = vidioc_streamon,
-	.vidioc_streamoff           = vidioc_streamoff,
-	.vidioc_g_tuner             = vidioc_g_tuner,
-	.vidioc_s_tuner             = vidioc_s_tuner,
-	.vidioc_g_frequency         = vidioc_g_frequency,
-	.vidioc_s_frequency         = vidioc_s_frequency,
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-	.vidioc_g_register          = vidioc_g_register,
-	.vidioc_s_register          = vidioc_s_register,
-	.vidioc_g_chip_ident        = vidioc_g_chip_ident,
-#endif
-};
-
-static const struct video_device em28xx_video_template = {
-	.fops                       = &em28xx_v4l_fops,
-	.release                    = video_device_release,
-	.ioctl_ops 		    = &video_ioctl_ops,
-
-	.tvnorms                    = V4L2_STD_ALL,
-	.current_norm               = V4L2_STD_PAL,
-};
-
-static const struct v4l2_file_operations radio_fops = {
-	.owner         = THIS_MODULE,
-	.open          = em28xx_v4l2_open,
-	.release       = em28xx_v4l2_close,
-	.unlocked_ioctl = video_ioctl2,
-};
-
-static const struct v4l2_ioctl_ops radio_ioctl_ops = {
-	.vidioc_querycap      = radio_querycap,
-	.vidioc_g_tuner       = radio_g_tuner,
-	.vidioc_enum_input    = radio_enum_input,
-	.vidioc_g_audio       = radio_g_audio,
-	.vidioc_s_tuner       = radio_s_tuner,
-	.vidioc_s_audio       = radio_s_audio,
-	.vidioc_s_input       = radio_s_input,
-	.vidioc_queryctrl     = radio_queryctrl,
-	.vidioc_g_ctrl        = vidioc_g_ctrl,
-	.vidioc_s_ctrl        = vidioc_s_ctrl,
-	.vidioc_g_frequency   = vidioc_g_frequency,
-	.vidioc_s_frequency   = vidioc_s_frequency,
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-	.vidioc_g_register    = vidioc_g_register,
-	.vidioc_s_register    = vidioc_s_register,
-#endif
-};
-
-static struct video_device em28xx_radio_template = {
-	.name                 = "em28xx-radio",
-	.fops                 = &radio_fops,
-	.ioctl_ops 	      = &radio_ioctl_ops,
-};
-
-/******************************** usb interface ******************************/
-
-
-
-static struct video_device *em28xx_vdev_init(struct em28xx *dev,
-					const struct video_device *template,
-					const char *type_name)
-{
-	struct video_device *vfd;
-
-	vfd = video_device_alloc();
-	if (NULL == vfd)
-		return NULL;
-
-	*vfd		= *template;
-	vfd->v4l2_dev	= &dev->v4l2_dev;
-	vfd->release	= video_device_release;
-	vfd->debug	= video_debug;
-	vfd->lock	= &dev->lock;
-
-	snprintf(vfd->name, sizeof(vfd->name), "%s %s",
-		 dev->name, type_name);
-
-	video_set_drvdata(vfd, dev);
-	return vfd;
-}
-
-int em28xx_register_analog_devices(struct em28xx *dev)
-{
-      u8 val;
-	int ret;
-	unsigned int maxw;
-
-	printk(KERN_INFO "%s: v4l2 driver version %s\n",
-		dev->name, EM28XX_VERSION);
-
-	/* set default norm */
-	dev->norm = em28xx_video_template.current_norm;
-	v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm);
-	dev->interlaced = EM28XX_INTERLACED_DEFAULT;
-
-	/* Analog specific initialization */
-	dev->format = &format[0];
-
-	maxw = norm_maxw(dev);
-        /* MaxPacketSize for em2800 is too small to capture at full resolution
-         * use half of maxw as the scaler can only scale to 50% */
-        if (dev->board.is_em2800)
-            maxw /= 2;
-
-	em28xx_set_video_format(dev, format[0].fourcc,
-				maxw, norm_maxh(dev));
-
-	video_mux(dev, 0);
-
-	/* Audio defaults */
-	dev->mute = 1;
-	dev->volume = 0x1f;
-
-/*	em28xx_write_reg(dev, EM28XX_R0E_AUDIOSRC, 0xc0); audio register */
-	val = (u8)em28xx_read_reg(dev, EM28XX_R0F_XCLK);
-	em28xx_write_reg(dev, EM28XX_R0F_XCLK,
-			 (EM28XX_XCLK_AUDIO_UNMUTE | val));
-
-	em28xx_set_outfmt(dev);
-	em28xx_colorlevels_set_default(dev);
-	em28xx_compression_disable(dev);
-
-	/* allocate and fill video video_device struct */
-	dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video");
-	if (!dev->vdev) {
-		em28xx_errdev("cannot allocate video_device.\n");
-		return -ENODEV;
-	}
-
-	/* register v4l2 video video_device */
-	ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
-				       video_nr[dev->devno]);
-	if (ret) {
-		em28xx_errdev("unable to register video device (error=%i).\n",
-			      ret);
-		return ret;
-	}
-
-	/* Allocate and fill vbi video_device struct */
-	if (em28xx_vbi_supported(dev) == 1) {
-		dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template,
-						"vbi");
-
-		/* register v4l2 vbi video_device */
-		ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
-					    vbi_nr[dev->devno]);
-		if (ret < 0) {
-			em28xx_errdev("unable to register vbi device\n");
-			return ret;
-		}
-	}
-
-	if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) {
-		dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template,
-						  "radio");
-		if (!dev->radio_dev) {
-			em28xx_errdev("cannot allocate video_device.\n");
-			return -ENODEV;
-		}
-		ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
-					    radio_nr[dev->devno]);
-		if (ret < 0) {
-			em28xx_errdev("can't register radio device\n");
-			return ret;
-		}
-		em28xx_info("Registered radio device as %s\n",
-			    video_device_node_name(dev->radio_dev));
-	}
-
-	em28xx_info("V4L2 video device registered as %s\n",
-		    video_device_node_name(dev->vdev));
-
-	if (dev->vbi_dev)
-		em28xx_info("V4L2 VBI device registered as %s\n",
-			    video_device_node_name(dev->vbi_dev));
-
-	return 0;
-}